October 1973 1
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II RICHJ.RD W. BJIRSTOW 26, Tregeseal, st. Just, Near Penzance, Cornwall, England. <RDERING INFCRMaTION Mail orders are promptly filled and despatched on a 7-day examination basis, subject to approval. Immediate refund guaranteed on return of specimens. Please quote the n:::ne and the number of the specimen(s) required, and enclose P.O./Cheque with order. No charge is made for postage and packing, except for ove~ seas customers and postage over 50p. We reserve the right to make slight substitutions, if necessary, unless advised to the contrary. Special requests and 'wants lists' are \·Ielcome. We hope that we may be of some service to you, and assure you of our best attention at all times. OCTOBER 1973 1. bP~TITE. Tregarden Quarry, Luxulyan, Cornwall. Specimen a- Small, bright sharp greenish blue modified hexagonal crystals richly encrusting Orthoclase, Quartz, Tourmaline, Gilbertite and Fluorite pegmatite. lxl". £2; Specimen B- Odd scattered small "Iell formed crystals on crystalised Orthoclase with Quartz and some highly modified deep purple Fluorite crystals. 2xlt". £1. 50; Specimen C- Small sharp sea-green crystals scattered over Gilbertite on Orthoclase crystals. ~ specimens are offered of similar quality and size .. xt" each. £1 per specimen; Specimen D- Similar to specimen C with slightly less coverage of apatite. 5 pieces on offer at 50p. each. 2. ",P.c.TITE. Pana squeira, Beira-Biaxa, Portugal. Large, sharp semi-transparent sea-green hexagonal crystals to til in size intergro"m and encrusting a matrix of Muscovite Mica with minor Quartz and JirSenopyrite. Large b.patite crystals such as these are very rare, and although there is slight damage to some of the crystals it is an extremely handsome piece. 3tx3t". £30. 3. ~URIca~LCITE. Golconda Mine, Brassington, Derbyshire. Light green radiated crystal tufts and masses in numerous cavities in cellular Ba~ytes matrix with small sparkling Hemimorphite crystals in association. 3tx3x2t" • £It. 4. AUTUNITE. Bessines, Haute-Vienne, France. Bright, blocky yellowish-green crystals thickly intergro\vu and encrusting reddish Granite matrix. a very fine and well crystalised specimen of this mineral. ltxlt". £10. 5. aZURITE. Proprietary Mine, Broken Hill, New South Wales, tlustralia. Bright blue sharp well formed crystals forming an attractive intergro"m cellu13r mass with minor Malachite in association. 2tx2t". £10. 6. bZURITE. Tsumeb, Otavi, South West l~rica. Superb, single deep blue sharp crystals showing perfect terminations. Mostly around l"xt" in size - £3 each. 7. BbRYTES. Hilton Mine, Scordale, Westmoreland. 1. large well- formed group of three crystals in parallel growth the largest being 2t"x3t" in size, and the three crystals being mainly transparent. £3.50. -""""'=----------- -2- BnRYTOChLCITE. Nentsberry Hoggs Mine, ~dmiralty Flats, hlston, Cumberland. Well formed white intergrown crystals to ~" in size thickly encrusting Limestone matrix. 41x2~". £4-. 9· B~YLDONITE. Tsumeb, Otavi, S.W. africa. Extremely rich thick apple green coatings on and replacing an inter grmm mass of large skeletal Mimetite crystals. 2~x2". £5. 10. BhYLDONITE. Penberthy Crofts Mine, st. Hilary, Cornwall. Specimen ~ - Rich crusts thickly coating Quartz gossan matrix. 2x2", £1. 50; Specimen B- Thick green crusts infilling joints and coating gossan matrix with minor Mimetite in association. l~xl!". £1.25. 11. N"TIVE BISMUTH. Botallack Mine, St. Just, CormTal1. Rich, bright metallic cleavages disseminated through brmmish Jasper. 3x2". £1.75; 2~x2". £1.50. 12. BLOMSTRl DINE. ~endal, Southern Norway. A pure deep lustrou5 brownish mass showing concoidal fracture and a rough crystal outline. 2xl". £1. BORNITE. Trenwith Mine, st. Ives, Cornwall. An interesting intergrowth of Bornite forming a meshwork in golden Chalcopyrite with minor Pyrite and Chlorite. an old label is attached to the specimen. 3xl~". £1.25. 14. BORNITE. Tincroft Mine, Illogan, Corn"Tall. Slightly irridescent mass intergrown with greyish massive Chalcocite. hn old label accompanies this specimen. 2xltxlt" • £1. 15. BORNITE. Wheal Pe~~ance, Redruth, Cornwall. Small cubic crystals encrusting cellular Quartz rna trix. Itxl". £1. 16. BR~ZIL~NITE. Mantena, Minas Gerais, Brazil. Lime green translucent well formed and terminated single crystal 1" in size. £2. 17. BROOKITE. Magnet Cove, Garland Co., arkansas, U.S.A. Large, black, \o/el1 formed crystals to ~" in size richly scattered over a Quartzose matrix. 3~x3". £7. 18. ~~LCITE. Levant Mine, Pendeen, Cornwall. An unusual group of pinkish platy crystals intergrown in such a fashion as to resemble a rose. 2xlt". £3. 19. CaLCITE. Stank Mine, Ulverstone, North Lanes. Highly modified transparent sharp crystals encrusting a large bro"mish partially etched 'dog-tooth' habit Calcite crystal, the overlying crystals being stacked tovmrds the temination of the underlying crystal in parallel growth. 3x3~". £6. 20. CALCITE. Beckermet Mine, Millom, West Cumberland. Large semi-transparent hexagonal well termli,ated crystals in parallel growth, the largest crystals being 3" in length, with inclusions of light reddish Hematite giving the specimen a very attractive colouration. 3x3". £4.50. 21. ChSSITERITE. Ding Dong Mine, Madron, Cornwall. ~ cellular wass of Tourmalinised Granite .,ith all the cavities lined with small black sparkling Cassiterite crystals. 3x2". £4-. -3- CaSSITERITE. SJvath, Luxulyan, Corm181l. li. mass of coarse brown Cassiterite with numerous cavities lined with eharp black crystols and associated with minor Tourmaline and Muscovite. 3tx3x2". £7. 23. CaSSITERITE. st. dgnes, Cornwall. h crust of bright bla~ well-formed crystals richly encrusting altered Slate matrix. An old label is attached to this specimen. 4-x2". £7. 24-. CaSSITERITE. Great Beam Mine, Nr. Roche, Cormvall. an interesting vein section consisting of coarse brown crystaline Cassiterite with minor Quartz, Topaz and a central infillLDg of Tourmaline between v1811s of altered Granite. 3x2x2". £3. 25. C"SSITERITE. Reclmoor Mine, Callington, Corm/all. Light bro.m elongated 'sparable' type crystals intergrown and lining cavities in drusy QU<:lrtz. 2xltxlt". £4-.50. 26. Cli.SS IT ER IT E. Galicia, Spain. Dark black lustrous intergrmvn crystals to t" in size associated with minor brownish matrix. Crystals of this size are very rare. 2xltxli". £7. 27. C~SSITERITE.varietyWood Tin. Tasna, Oruro, Bolivia. n. superb botryoidal mass with a crystaline surface, the sides showing excellent banding. An old label is attached to the specimen. 3x2". £8. 28. CnSSITERITE, pseudomorphous after Orthoclase Feldspar. Specimen ~ - intergrown twinned crystals with minor Quartz forming a 1" group, £2; Specimen B-1" terminated single crystal, £1.50. Location:- Wheal Coates, st. "gnes, Cormvall. 29. CELESTITE. Madagascar. nn excellent large portion of a geode completely lined with large clear light blue sharply terminated crystals. This is an extremely fine specimen suitable for cabinet or ~ecorative display. 6x5tx2t" - the largest Celestite crystals being 1" in size and mostly over t". £35. 30. CHhLcOCITE. Cooks Kitchen Mine, Camborne, Cornwall. Irridescently tarnished intGrgrovm plJty hexagonal cryst<:lls thickly encrusting Chlorite/Sulphide matrix. lttx3x2". £10. 31. '::L-..RKE ITE. Spruce Pine, Mitchell Co., North Carolina, U. S.1>.. Dark brovm resinous mass .lith minor Uraninite and yello1/1ish Gummite. 2x2". £2.50. 32. CLINOCL-.SE. Wheal Gorland, St. Day, Cornwall. Deep blue radiated crystal aggregates richly intergrovm with light blue massive Liroconite and gossan. ltxlt". £4-. 33. CLINOCL"SE. Cap Garonne, Var, France. Rich crusts of small deep blue drusy crystals on matrix with minor ?reenish Cormvallite in association. Specimen 1>. - ltxl"2'" £1. 50; Specimen B- lxl". £1. 34-. COLUMBITE. hnnerod, Olstfold, Norway. Pure, lustrous blackish bro.m mass vlith inor pink Feldspar. 2xl"2'"l £1..50. 35. CONNELLITE variety 'T':"LLINGITE'. Cliff Lode, Wheal Edward, St. Just, Cornwall. Light sky-blue crystaline crusts on Quartz. lxl". 50p. -4- Nb.TIVE COPPER. Relestian Mine, GWinear, Cornwall. 1l.n intergrown mass of slightly tarnished bronzy spiky crystals. 2xl". £2. 37. N,SIVE COPPER. Broken Hill, N.S.Wales, Australia. b.. wiry crystalised mass associated with glassy white reticulated Cerussite crystals. 2txl". £1.75. 38. NATIVE COPPER. Boston Mine, Keweenaw Peninsular, Michigan, U.S."'-. a hackly convoluted mass of interesting form with Quartz and minor greenish Epidote. 2txl~". £3. 39. COVELLITE. Stewart Mine, Butte, Silver Bow Co., Montana, U.S.~. h pure deep bluish irridescently tarnished platy mass with minor Pyrite in association. 3tx2t". £5. 4o. CUPRITE. Tolcarne Mine, Camborne, Cornwall. Deep maroon coloured veinlets and drusy cr~»taline masses with minor Native Copper and Quartz. 3x2"2'" £~. 41. CUPRITE. Wheal Damsel, St. Day, Cornwall. Rich deep red octahedral crystals thickly intergrown with crystaline Native Copper nnd minor uartz. 2txli". £5. 4-2. DELaFOSSITE. Bisbee, arizona, U.S.ft. Blackish grey drusy crystals lining cavities in a Hematitic matrix with ll minor Cuprite in association. 2tx2 • £2. ELL~[ORTHITE. McDonald Mine, Hybla, Ontario, Canada. Blackish resinous masses richly ag6regated in Calcite. 2x2". £1.50. ltlt. EOsPHORITE. Piemental Mendez, Minas Gerais, Brazil. Specimen 1J.. - Itxlt" matrix of crystalised Rose Quartz with li6ht brovm well formed and terminated sprays of Eosphorite implanted on it. £12; Specimen B- Lustrcu s light brown transparent elongated terminated crystals richly encrusting Quartz matrix. 2xlt". £10. These